xmr-btc-swap/swap/tests/concurrent_bobs_after_xmr_lock_proof_sent.rs

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Rust
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pub mod harness;
use harness::bob_run_until::is_xmr_locked;
use harness::SlowCancelConfig;
use swap::asb::FixedRate;
use swap::protocol::alice::AliceState;
use swap::protocol::bob::BobState;
use swap::protocol::{alice, bob};
#[tokio::test]
async fn concurrent_bobs_after_xmr_lock_proof_sent() {
harness::setup_test(SlowCancelConfig, |mut ctx| async move {
let (bob_swap_1, bob_join_handle_1) = ctx.bob_swap().await;
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let swap_id = bob_swap_1.id;
let bob_swap_1 = tokio::spawn(bob::run_until(bob_swap_1, is_xmr_locked));
let alice_swap_1 = ctx.alice_next_swap().await;
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let alice_swap_1 = tokio::spawn(alice::run(alice_swap_1, FixedRate::default()));
let bob_state_1 = bob_swap_1.await??;
assert!(matches!(bob_state_1, BobState::XmrLocked { .. }));
// make sure bob_swap_1's event loop is gone
bob_join_handle_1.abort();
let (bob_swap_2, bob_join_handle_2) = ctx.bob_swap().await;
let bob_swap_2 = tokio::spawn(bob::run(bob_swap_2));
let alice_swap_2 = ctx.alice_next_swap().await;
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let alice_swap_2 = tokio::spawn(alice::run(alice_swap_2, FixedRate::default()));
// The 2nd swap should ALWAYS finish successfully in this
// scenario
let bob_state_2 = bob_swap_2.await??;
assert!(matches!(bob_state_2, BobState::XmrRedeemed { .. }));
let alice_state_2 = alice_swap_2.await??;
assert!(matches!(alice_state_2, AliceState::BtcRedeemed { .. }));
let (bob_swap_1, _) = ctx
.stop_and_resume_bob_from_db(bob_join_handle_2, swap_id)
.await;
assert!(matches!(bob_swap_1.state, BobState::XmrLocked { .. }));
// The 1st (paused) swap ALWAYS finishes successfully in this
// scenario, because it is ensured that Bob already received the
// transfer proof.
let bob_state_1 = bob::run(bob_swap_1).await?;
assert!(matches!(bob_state_1, BobState::XmrRedeemed { .. }));
let alice_state_1 = alice_swap_1.await??;
assert!(matches!(alice_state_1, AliceState::BtcRedeemed { .. }));
Ok(())
})
.await;
}